Smoke-consuming and fuel-saving device.



V Patented Dec; 25,.l900. C. H. BRYANT, A. C. RDESSLER, J. M. MITCHELL & G. T. AUG SPUBG.

No. 664,38l.

SMOKE CONSUMI NG AND FUEL SAVING DEVICE.

(a 0 Model (Application filed July 6, 1900.

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UNTTED STATE PATENT O FICE.

CHARLES HENRY BRYANT, AMANDUS CHARLES ROESSLER, JOHN MITCHELL MITCHELL, AND GUILLERMO TORIBIO AUGSPURG, OF LONDON, ENGLAND.

SMOKE-CONSUMING AND. FUEL-SAVING DEVICE.

SPECIFICATION formingpart of Letters Patent No. 664,381, dated. December 25, 1900.

Application filed July 6., 1900. Serial No. 22,738. (No model.)

convolutions and impart thereto a twisting To all whmn it may concern: motion in a direction preferably, but not im- Be it known, that we, CHARLES HENRY peratively, opposite to that in which itleaves 'BBYANT, residing at Woodroffe House, The the shaft, and such twisting motion causes Mall, Chiswick, London, S. W., AMANDUS the smoke to be intimately mixed with a cer- 5 CHARLES ROESSLER, residing at 189 Earlstain proportion of atmospheric air taken in field road, Wandsworth, London, S. L, between the top of the shaft and the said JOHN MITCHELL lllITCHELLJGSldlng at Monucanopy, where a physical combination is ment Square Chambers, Monument Square, created, the specific gravity of which is be- London, E. 0., and GUILLERMO TORIBIO lieved to be greater than that of the upcom- :o AUGsPURG,residing at 48 Bessborough street, ing products of combustion or smoke, while Westminster, London, S. W., England, subthe said twisting motion exercises a certain jects of Her Majesty the Queen of Great Britdegree of centripetal force upon the mixture, ain, have invented certain new and useful the special formation of the convolution or Improvements in Smoke Consuming and convolutions within the said canopy also op- I5 Fuel-Saving Devices, (for which we have apjerating to twist the said mixture into the plied for Letters Patent in Great Britain, No. form of an inverted cone and impart thereto 8,265, dated May 4, 1900,) of which the fola thrust in a downward direction centrally lowing is a specificationof and within the partial vacuum formed in Our invention relates to anew or improved i the upcoming smoke, and by reason of the 2o device or apparatus for attachment to, withsupposed greater density of the said mixture,

in, or upon the uptake-shafts, chimneys, or together with the centripetal force and downfunnels of all kinds of furnaces, domestic or ward thrust imparted thereto, the said mixotherwise, but more especially those of mature is caused to travel down the said shaft rine and otherboilers, as a means for improvwithin the cylinder of upcoming smoke until 25 ing the updraft of such shafts or chimneys it reaches the furnace, whereat perfect comand consuming the smoke or gases formed by bustion of the mixture ensues. imperfect combustion and passing there- In order that our said invention and the through, thus effecting a material saving in manner of its operation may be understood, the fuel necessary for maintaining the said we have hereunto appended a sheet of draw- 3o furnace, while obviating the annoyance usuings in which we have chosen to illustrate our ally experienced of emitted smoke. invention as self-contained and adapted for Ourinvention consists in building or otherfixation within and upon the upper end of a wise placing and fixing within the upper end smoke shaft or chimney; but we wish it unof such an uptake shaft or chimney two or derstood that this is given merely to illustrate 35 more suitably disposed metallic or other the principle of our invention and that such vanes orsmoke-guides so placed and arranged portion as is shown fixed within a cylinder as to impart to the rising smoke or product adapted to be placedwithin the shaft or chimof imperfect combustion a twisting or spiral ney may be built in or fixed directly to and motion in one direction and to exercise therewithin the shaft or chimney itself, if desired. 4 on a certain degree of centrifugal force, so Figure 1 is a vertical part-sectional view of that the smoke is thereby caused to hug the our said invention, while Fig. 2 is a top end wall of the shaft and reach the top thereof View of same with the canopy removed, Fig. in the form of a hollow cylinder or tube. At 3 being an under plan view of the said canopy. a suitable distance above the top of the said In the method of construction illustrated by 45 shaft or chimney is mounted and fixed a prefthe drawings our invention consists of a metal erably circular canopy concave upon its unor other cylinder A, adapted to fit within and der surface, and in this concave portion is rest upon the upper end of an uptake shaft provided a graduated fixed convolute paror chimney B in connection with any form of tition or partitions so arranged as to receive furnace. Within the said cylinderAwe place I00 50 the issuing smoke in its outer convolution or and fix two or more metallic, earthenware, or

other vanes or guides C, these being each spirally formed, with the upper end C of suitable breadth, from which it tapers in width to its lower end 0 whereat it may finish flush with the cylinder A, and these collectively impart a spiral motion to the upcoming smoke in the direction of the arrows in Figs. 1 and 2, the said vanes or guides also exercising a certain degree of centrifugal force upon the smoke, whereby it is pushed toward the wall of the chimney or shaft B, so that the smoke forms itself into a hollow cylinder, the center of which thereby becomes a partial Vacuum.

The cylinder A is surmounted by a metallic or other canopy D, concave upon its under surface and attached to the said. cylinder A or the shaft B by any convenient means such, for instance, as that of ties E. Within the concave under surface of D is placed and fixed a metallic, earthenware, or other partition F, of convolute formation, the outer end.

a of which is shallow and gradually increases in depth toward its innermost end b, the direction of the said convolution being such that as the smoke issues from the top of. A (or B, as the case may be) and mixes, as stated, with the atmosphere entering between A and D a circular motion is imparted to the new mixture preferably, but not imperatively, in a direction opposite to that imparted to the smoke by the vanes or guides O, as indicated by the arrow in Fig. 3, and by reason of this the mixture is directed toward the center of the convolutions, and a centripetal force is thereby imparted thereto, while the increased width or depth of the convolutions atb operate to impart a downward thrust to the mixture, and this, acting in combination with the supposed greater specific gravity of the mixture, causes the latter to pass down the center of the chimney in the form of narrow current with a force suificient to carry it into the furnace, where perfect combustion of the mixture takes place, the heat given ofi from which operates for increasing the purposes for which the furnace is provided, thus effecting a material saving in fuel, while the after products of combustion would contain less unconsumed carbon, and consequently a lesser volume of smoke would be passing up the shaft.

In order that the convolute guide F in the canopy D may be in a position to present its initial end a to the direction ofthe wind, we may provide two or more such convolutions in D in such a way that their respective initial ends a may be disposed around and within the outer edge of the canopy D, while all their inner ends may be arranged to finish at the point I). The vanes C may be arranged to extend any depth down-the cylinder A or shaft B even to within a short distance of the furnace, if desired. 7

Having now particularly described. and ascertained the nature of our said invention and in what manner the same is to be performed, we declarethat what .we claim is 1. In combination in a smoke-consuming device, two spirally-disposed vanes'arranged within the chimney, a canopy surmounting the chimney-flue with an air-space between, said canopy being concaved upon its lower side and graduated convolute partitions fixed upon the lower side of the canopy, substantially as described.

2. In combination with the chimney, of vanes within the same to cause the products of combustion to assumea hollow cylindrical form, a canopy Sui-mounting the chimney and means carried thereby for arresting the ascending products of combustion and returnin g them axially of the chimney, substantially as described.

3. In combination with thechimney, means within the chiinneyfor giving to the smoke a rotary motion and a canopy surmounting the chimney wit-h a space between, said canopy having means to give the smoke a rotary motion in an opposite direction to that imparted by the means in the chimney, substantially as described.

4. Incombination the chimney and a canopy having convolutions, said canopy surmounting the chimney, substantially as described.

5. In combination, the chimney and a canopy having convolutions to give the smoke a rotary motion, said convolution being deeper at the center of the canopy, substantially as described.

6. In combination, the chimney and a canopy having convolutions to give the smoke a rotary motion inwardly and downwardly, substantially as described.

In witness whereof we have hereunto set our hands in presence of two witnesses.

CHARLES HENRY BRYANT. AMANDUS CHARLES ROESSLER. JOHN MITCHELL MITCHELL. GUILLERMO TORIBIO AUGSPURG. Witnesses:

GEORGE THOMAS HYDE, HENRY CONRAD HEIDE. 

